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Property, Plant and Equipment - Summary of Provisions for Impairment of Property, Plant and Equipment (Detail) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of detailed information about property, plant and equipment [line items]      
Amount at beginning of year $ 308,014 $ 270,905  
Depreciation (53,512) (44,752) $ (26,685)
Amount at end of year 354,443 308,014 270,905
Provision for Impairment of Property Plant and Equipment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Amount at beginning of year 36,285 2,455  
Increase charged to profit/ (loss)   36,188 2,455
Decrease charged to profit/ (loss) (5,032) (1,245)  
Depreciation (9,955) (2,877)  
Translation differences 5,237 1,869  
Deconsolidation of subsidiaries   (105)  
Amount at end of year $ 26,535 $ 36,285 $ 2,455